RE: Over powered Extra Special?
Yeah any old 10X6 prop will be fine. But if you want to slow the plane down you can try the APC 11X4 or an APC 12.25X3.75. The 12.25X3.75 will really slow the plane down and lower the motors rpm but you will still have the power you want.
But like I said a 10X6 of any brand will work fine.
Mike